<!--
  This file is a part of the open-eBackup project.
  This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
  If a copy of the MPL was not distributed with this file, You can obtain one at
  http://mozilla.org/MPL/2.0/.
  
  Copyright (c) [2024] Huawei Technologies Co.,Ltd.
  
  THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
  EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
  MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
  -->


<!DOCTYPE html
  PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en-us" xml:lang="en-us">
<head>
      <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
   
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="DC.Type" content="topic">
<meta name="DC.Title" content="Step 3: Creating a Backup SLA">
<meta name="product" content="">
<meta name="DC.Relation" scheme="URI" content="en-us_topic_0000001189115024.html">
<meta name="prodname" content="">
<meta name="version" content="">
<meta name="brand" content="">
<meta name="DC.Publisher" content="20220315">
<meta name="DC.Format" content="XHTML">
<meta name="DC.Identifier" content="EN-US_TOPIC_0000001188956464">
<meta name="DC.Language" content="en-us">
<link rel="stylesheet" type="text/css" href="public_sys-resources/commonltr.css">
<title>Step 3: Creating a Backup SLA</title>
</head>
<body style="clear:both; padding-left:10px; padding-top:5px; padding-right:5px; padding-bottom:5px"><a name="EN-US_TOPIC_0000001188956464"></a><a name="EN-US_TOPIC_0000001188956464"></a>

<h1 class="topictitle1">Step 3: Creating a Backup SLA</h1>
<div id="body0000001188956464"><p id="EN-US_TOPIC_0000001188956464__p1232219182511">You need to create a backup SLA to back up file systems.</p>
<div class="section" id="EN-US_TOPIC_0000001188956464__section8564386224"><h4 class="sectiontitle">Precautions</h4><ul id="EN-US_TOPIC_0000001188956464__ul8881201542213"><li id="EN-US_TOPIC_0000001188956464__li0881181562219">Invalid soft link files cannot be backed up.</li><li id="EN-US_TOPIC_0000001188956464__li187993414419">Files of non-common types, such as pipe and socket, cannot be backed up.</li><li id="EN-US_TOPIC_0000001188956464__li0352239204413">The backup window of the secondary end of asynchronous replication must be different from the replication window. If the policy is configured in waiting mode, the waiting time after replication is complete must be longer than 3 minutes.</li><li id="EN-US_TOPIC_0000001188956464__li1810135564415">File systems whose names start with <strong id="EN-US_TOPIC_0000001188956464__b17482102119262">pvc_</strong> cannot be backed up.</li><li id="EN-US_TOPIC_0000001188956464__li12365922102314">Protection cannot be added to the secondary end of a synchronous remote replication pair.</li><li id="EN-US_TOPIC_0000001188956464__li122562029132317">File systems in WORM, CLONE, and non-UNIX security modes cannot be backed up.</li><li id="EN-US_TOPIC_0000001188956464__li13690759202313">After HyperMetro brain-split occurs, the end with failed arbitration does not support backup and restore.</li><li id="EN-US_TOPIC_0000001188956464__li176861516245">Only the file system of the default tenant <strong id="EN-US_TOPIC_0000001188956464__b127101827152616">System_vStore</strong> can be backed up.</li><li id="EN-US_TOPIC_0000001188956464__li127302702414">Only NFS can be used for backup. CIFS cannot be used.</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0000001188956464__section98912026153513"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0000001188956464__ol0598140123514"><li id="EN-US_TOPIC_0000001188956464__li149381918143112"><span>Choose <span class="menucascade" id="EN-US_TOPIC_0000001188956464__menucascade15901336135014"><b><span class="uicontrol" id="EN-US_TOPIC_0000001188956464__uicontrol159011136155018"><span id="EN-US_TOPIC_0000001188956464__text23759296521"><strong>Protection</strong></span></span></b> &gt; <b><span class="uicontrol" id="EN-US_TOPIC_0000001188956464__uicontrol1560403885017"><span id="EN-US_TOPIC_0000001188956464__text9687134795217"><strong>Protection Policies</strong></span></span></b> &gt; <b><span class="uicontrol" id="EN-US_TOPIC_0000001188956464__uicontrol15064355013"><span id="EN-US_TOPIC_0000001188956464__text14767205735211"><strong>SLAs</strong></span></span></b></span>.</span></li><li id="EN-US_TOPIC_0000001188956464__li85725345317"><span>Click <span class="uicontrol" id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001142022930_uicontrol12915192943311"><b><span id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001142022930_text39091229123315"><strong>Create</strong></span></b></span>.</span></li><li id="EN-US_TOPIC_0000001188956464__li632243103212"><span>Enter an SLA name.</span></li><li id="EN-US_TOPIC_0000001188956464__li1859517202518"><span>Select an application type for the SLA to be created.</span><p><ol type="a" id="EN-US_TOPIC_0000001188956464__ol71011061385"><li id="EN-US_TOPIC_0000001188956464__li874192611325">Click <span class="uicontrol" id="EN-US_TOPIC_0000001188956464__uicontrol16364345183319"><b><span id="EN-US_TOPIC_0000001188956464__text1149753619468"><strong>Applications</strong></span></b></span>. In the displayed window, select <span class="uicontrol" id="EN-US_TOPIC_0000001188956464__uicontrol17903536763"><b><span id="EN-US_TOPIC_0000001188956464__text6588105302917"><strong>Local File System</strong></span></b></span>.</li><li id="EN-US_TOPIC_0000001188956464__li7586156123316">Click <span class="uicontrol" id="EN-US_TOPIC_0000001188956464__uicontrol186261358152917"><b><span id="EN-US_TOPIC_0000001188956464__text3626135892910"><strong>OK</strong></span></b></span>.</li></ol>
</p></li><li id="EN-US_TOPIC_0000001188956464__li167542484582"><span>Click <span class="uicontrol" id="EN-US_TOPIC_0000001188956464__uicontrol18235203385915"><b><span id="EN-US_TOPIC_0000001188956464__text3235143318594"><span id="EN-US_TOPIC_0000001188956464__text10275546133113"><strong>Backup Policy</strong></span></span></b></span>.</span></li><li id="EN-US_TOPIC_0000001188956464__li148724933815"><span>Set basic parameters for the backup policy.</span><p><ol type="a" id="EN-US_TOPIC_0000001188956464__ol2914153515019"><li id="EN-US_TOPIC_0000001188956464__li1891263519011">Select the backup storage created in section <a href="en-us_topic_0000001188939346.html">3.1.1</a> from the <span class="uicontrol" id="EN-US_TOPIC_0000001188956464__uicontrol14912173514011"><b><span id="EN-US_TOPIC_0000001188956464__text0220111193013"><strong>Backup Storage</strong></span></b></span> drop-down list on the right.</li><li id="EN-US_TOPIC_0000001188956464__li3914035502">Set incremental backup parameters. Two backup modes are supported: periodic backup and backup at a specified time.<p id="EN-US_TOPIC_0000001188956464__p18912123515014"><a name="EN-US_TOPIC_0000001188956464__li3914035502"></a><a name="li3914035502"></a><a href="#EN-US_TOPIC_0000001188956464__table1591417351806">Table 1</a> describes the related parameters.</p>
<div class="p" id="EN-US_TOPIC_0000001188956464__p1191213351402">Set the backup interval, backup retention period, and backup time window based on service requirements. The recommended settings are as follows:<ul id="EN-US_TOPIC_0000001188956464__ul169120351012"><li id="EN-US_TOPIC_0000001188956464__li2091819292110">If the file system to be protected belongs to the secondary end of a remote replication pair, ensure that the backup window of the storage system is different from the replication window of the remote replication pair. Otherwise, the backup job may fail.</li><li id="EN-US_TOPIC_0000001188956464__li29127354019">The backup interval must be longer than the backup duration.</li><li id="EN-US_TOPIC_0000001188956464__li139122353016">The execution time of the initial backup should be the same as the start time of the backup time window.</li><li id="EN-US_TOPIC_0000001188956464__li129129359010">The retention period must be longer than the backup interval.</li></ul>
</div>

<div class="tablenoborder"><a name="EN-US_TOPIC_0000001188956464__table1591417351806"></a><a name="table1591417351806"></a><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001188956464__table1591417351806" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Basic parameters of a backup policy</caption><colgroup><col style="width:10.83%"><col style="width:13.889999999999999%"><col style="width:75.28%"></colgroup><thead align="left"><tr id="EN-US_TOPIC_0000001188956464__row391217351202"><th align="left" class="cellrowborder" colspan="2" valign="top" id="mcps1.3.3.2.6.2.1.2.3.2.4.1.1"><p id="EN-US_TOPIC_0000001188956464__p591273518016">Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" id="mcps1.3.3.2.6.2.1.2.3.2.4.1.2"><p id="EN-US_TOPIC_0000001188956464__p2912103510019"><strong id="EN-US_TOPIC_0000001188956464__b108091256568">Description</strong></p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001188956464__row19132351607"><td class="cellrowborder" colspan="2" valign="top" headers="mcps1.3.3.2.6.2.1.2.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001188956464__p1791310351307">Name</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.3.2.6.2.1.2.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001188956464__p15835182717387">Set the name of the backup policy.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001188956464__row10172155863813"><td class="cellrowborder" colspan="2" valign="top" headers="mcps1.3.3.2.6.2.1.2.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001188956464__p1236218263914">-</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.3.2.6.2.1.2.3.2.4.1.2 "><div class="p" id="EN-US_TOPIC_0000001188956464__p157911675147">Configure the initial execution time, backup interval, copy retention period, and backup time window for incremental backup.<ul id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_ul167919791414"><li id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_li1079119781413">Configure the backup frequency and copy retention period for incremental backup.<ul id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_ul1679113751412"><li id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_li177910751413"><span id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_text9791187121410"><strong>By Year</strong></span><p id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_p7791117131413">Configure the job to be executed once every year on <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i8648432155012">XX</em> (month) <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i206495324503">XX</em> (day), and copies are retained for <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i136491032145017">XX</em> days, weeks, months, years, or permanently.</p>
<p id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_p62586191379">If the date does not exist in the year, no copy is generated.</p>
</li><li id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_li1279112715144"><span id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_text979110717147"><strong>By Month</strong></span><p id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_p179113721413">Configure the job to be executed on <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i0510104421815">XX</em><sup id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_sup10905193831913">th</sup> (day) (multiple days can be selected) or the last day of each month, and copies are retained for <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i14511104491820">XX</em> days, weeks, months, years, or permanently.</p>
<p id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_p125877114419">If the backup job is set to be performed on the <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i2816201205">XX</em><sup id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_sup198392013209">th</sup> day of each month, no copy is generated when the date does not exist in the current month.</p>
</li><li id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_li879112716144"><span id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_text27913720144"><strong>By Week</strong></span><p id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_p1079111741416">Set the job to be executed once every Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday (you can select multiple options). Copies are retained for <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i617102018549">XX</em> days, weeks, months, years, or permanently.</p>
</li><li id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_li251355615915"><span id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_text1391110711343"><strong>By day</strong></span><p id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_p175137561491">Set the backup job to be performed every <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i899411416262">xx</em> days starting from <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i89941141142616">xx</em> (year) <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i2995194110268">xx</em> (month) <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i2099544119263">xx</em> (day). Copies are retained for <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i17995241182616">xx</em> days, <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i1899612416263">xx</em> weeks, <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i15996134172617">xx</em> months, <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i999694114267">xx</em> years, or permanently.</p>
</li><li id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_li17513125616918"><span id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_text11653155316339"><strong>By Hour</strong></span><p id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_p451312561795">Set the backup job to be performed every <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i15846853152616">xx</em> hours starting from <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i168469530265">xx</em> (year) <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i1484685312618">xx</em> (month) <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i108471753182614">xx</em> (day). Copies are retained for <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i3847155362614">xx</em> days, <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i184716536263">xx</em> weeks, <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i1284812538261">xx</em> months, <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i12848175352612">xx</em> years, or permanently.</p>
</li><li id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_li108498361016"><span id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_text4119140183416"><strong>By Minute</strong></span><p id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_p178491339103">Set the backup to be performed every <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i3291964279">xx</em> minutes starting from <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i2292146102713">xx</em> (year) <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i72921869277">xx</em> (month) <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i192929610279">xx</em> (day). Copies are retained for <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i1293186122712">xx</em> days, <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i1329326152717">xx</em> weeks, <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i029314611271">xx</em> months, <em id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_i202942616276">xx</em> years, or permanently.</p>
</li></ul>
</li><li id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_li1679107171411">Set the time period for performing incremental backup. The incremental backup job will not be scheduled beyond the time range.<div class="note" id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_note77917711419"><span class="notetitle"> NOTE: </span><div class="notebody"><ul id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_en-us_topic_0000001506280289_ul64461851101420"><li id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_en-us_topic_0000001506280289_li037445621410">If the end time is earlier than or the same as the start time, the end time is actually the end time of the next day.</li><li id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_en-us_topic_0000001506280289_li4446145117142">If a backup job is not completed within the specified time window, the system does not stop the backup job, but reports an alarm.</li><li id="EN-US_TOPIC_0000001188956464__en-us_topic_0000001506280289_en-us_topic_0000001506280289_li4684315367">Once the retention period expires, the system automatically deletes the expired copies.</li></ul>
</div></div>
</li></ul>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</li><li id="EN-US_TOPIC_0000001188956464__li10746858142810">To add an incremental backup plan, click <span class="uicontrol" id="EN-US_TOPIC_0000001188956464__uicontrol2313145215292"><b><span id="EN-US_TOPIC_0000001188956464__text176532055135116"><strong>Add Policy</strong></span></b></span> on the right.<div class="note" id="EN-US_TOPIC_0000001188956464__note132691334135318"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0000001188956464__p526963419537">Each backup storage can be associated with only one backup policy.</p>
</div></div>
</li></ol>
</p></li><li id="EN-US_TOPIC_0000001188956464__li17967833631"><span>Set advanced parameters for the backup policy.</span><p><div class="p" id="EN-US_TOPIC_0000001188956464__p1915143519019"><a href="#EN-US_TOPIC_0000001188956464__table79151351804">Table 2</a> describes the related parameters.
<div class="tablenoborder"><a name="EN-US_TOPIC_0000001188956464__table79151351804"></a><a name="table79151351804"></a><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001188956464__table79151351804" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Advanced parameters of a backup policy</caption><colgroup><col style="width:30.06%"><col style="width:69.94%"></colgroup><thead align="left"><tr id="EN-US_TOPIC_0000001188956464__row791411353020"><th align="left" class="cellrowborder" valign="top" width="30.06%" id="mcps1.3.3.2.7.2.1.2.2.3.1.1"><p id="EN-US_TOPIC_0000001188956464__p1291453517013"><strong id="EN-US_TOPIC_0000001188956464__b0413151019285">Parameter</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="69.94%" id="mcps1.3.3.2.7.2.1.2.2.3.1.2"><p id="EN-US_TOPIC_0000001188956464__p491413351904"><strong id="EN-US_TOPIC_0000001188956464__b1893117625616">Description</strong></p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001188956464__row291417351304"><td class="cellrowborder" valign="top" width="30.06%" headers="mcps1.3.3.2.7.2.1.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001188956464__p189144351802"><span id="EN-US_TOPIC_0000001188956464__text2091453512010"><strong>Rate Limiting Policies</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="69.94%" headers="mcps1.3.3.2.7.2.1.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001188956464__p9914193512019">Maximum amount of data that can be transmitted by a backup job per second.</p>
<p id="EN-US_TOPIC_0000001188956464__p291493514017">Select the rate limiting policy created in <a href="en-us_topic_0000001633399125.html">Step 2: Creating a Rate Limiting Policy</a>.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001188956464__row19141935908"><td class="cellrowborder" valign="top" width="30.06%" headers="mcps1.3.3.2.7.2.1.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001188956464__p10914183512011"><span id="EN-US_TOPIC_0000001188956464__text1698545110322"><strong>Automatic Indexing</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="69.94%" headers="mcps1.3.3.2.7.2.1.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001188956464__p5914935506">Determines whether to enable automatic indexing. After automatic indexing is enabled, the system automatically creates indexes for files or directories in copies and performs file-level restore and download operations on the files or directories.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001188956464__row39159351602"><td class="cellrowborder" valign="top" width="30.06%" headers="mcps1.3.3.2.7.2.1.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001188956464__p18914123514020"><span id="EN-US_TOPIC_0000001188956464__text1988495714325"><strong>Aggregate</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="69.94%" headers="mcps1.3.3.2.7.2.1.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001188956464__p149149351209">Determines whether to aggregate multiple small files into a large file to improve the backup speed.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001188956464__row20915135409"><td class="cellrowborder" valign="top" width="30.06%" headers="mcps1.3.3.2.7.2.1.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001188956464__p17915635507"><span id="EN-US_TOPIC_0000001188956464__text716013393315"><strong>Network Acceleration</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="69.94%" headers="mcps1.3.3.2.7.2.1.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001188956464__en-us_topic_0164720430_en-us_topic_0145458805_en-us_topic_0138136329_p476014816598">Determines whether to enable network acceleration. After this function is enabled, Bottleneck Bandwidth and Round-trip propagation time (BBR) network acceleration can be used. You are advised to enable this function when the network latency is greater than or equal to 20 ms.</p>
<div class="note" id="EN-US_TOPIC_0000001188956464__en-us_topic_0164720430_en-us_topic_0145458805_en-us_topic_0138136329_note43921928185510"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="EN-US_TOPIC_0000001188956464__p10712821154012">You are advised to set the <span class="wintitle" id="EN-US_TOPIC_0000001188956464__en-us_topic_0164720430_en-us_topic_0145458805_en-us_topic_0138136329_wintitle17893135418494"><b>Network Acceleration</b></span> parameter to the same value for different buckets of the same OBS. That is, you can enable or disable network acceleration for all the buckets at the same time.</p>
</div></div>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001188956464__row691510358017"><td class="cellrowborder" valign="top" width="30.06%" headers="mcps1.3.3.2.7.2.1.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001188956464__p8915535609"><span id="EN-US_TOPIC_0000001188956464__text9915735708"><strong>Automatic Retry</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="69.94%" headers="mcps1.3.3.2.7.2.1.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001188956464__p59151935109">After this function is enabled, the system automatically retries in case a backup job fails.</p>
<div class="p" id="EN-US_TOPIC_0000001188956464__p159158351007">The number of retries ranges from 1 to 5, and the waiting time ranges from 1 to 30 minutes. For example, if the number of retries is set to 3 and the waiting time to 5 minutes, the system makes a total of three retries and performs each retry every 5 minutes.<div class="note" id="EN-US_TOPIC_0000001188956464__note1191518351206"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="EN-US_TOPIC_0000001188956464__p49151035302">During automatic retry, the system creates a backup job. The backup job is executed only when it is within the preset time window.</p>
</div></div>
</div>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001188956464__row1491515351800"><td class="cellrowborder" valign="top" width="30.06%" headers="mcps1.3.3.2.7.2.1.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001188956464__p19154351907"><span id="EN-US_TOPIC_0000001188956464__text8436134317308"><strong>Synthesis Full Cycle</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="69.94%" headers="mcps1.3.3.2.7.2.1.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001188956464__p199151035903">Specifies the number of backup times before a full backup. For example, if you enable <span id="EN-US_TOPIC_0000001188956464__text7460103117541"><strong>Synthesis Full Cycle</strong></span> and set <span id="EN-US_TOPIC_0000001188956464__text1149754165420"><strong>Backup</strong></span> to <strong id="EN-US_TOPIC_0000001188956464__b1461016491492">5</strong>, the system performs full backup at the sixth backup.</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</p></li><li id="EN-US_TOPIC_0000001188956464__li1618195321716"><span>Click <span class="uicontrol" id="EN-US_TOPIC_0000001188956464__uicontrol65831059121713"><b><span id="EN-US_TOPIC_0000001188956464__text1833112168332"><strong>OK</strong></span></b></span>. The system returns to the page for creating an SLA.</span></li><li id="EN-US_TOPIC_0000001188956464__li1092814385513"><span>Click <span class="uicontrol" id="EN-US_TOPIC_0000001188956464__uicontrol29131271161"><b><span id="EN-US_TOPIC_0000001188956464__text12104162233310"><strong>OK</strong></span></b></span>. The SLA is created.</span></li></ol>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_topic_0000001189115024.html">Backup</a></div>
</div>
</div>

<div class="hrcopyright"><hr size="2"></div><div class="hwcopyright">Copyright &copy; Huawei Technologies Co., Ltd.</div></body>
</html>